[jdkskyking]

These folks http://www.dieselcontrolservice.com/inde...placement/  say 53 is Nonvolatile memory failure or Nonvolatile memory data is incorrect. Sometimes caused by oil inside the case shorting the memory pins but I wouldn't think that would be the issue with a new unit. Did they flash the new unit with the correct parameters?

Others say if the EEPROM was not properly flashed/did not take the flash, you can get that code.  "Flash Code 53 indicates that the ECM was unable to read a valid copy of an engine data record (calibration, faults, or accumulators) stored in nonvolatile memory.Flash Code 53 also indicates that the ECM was unable to update an engine data record (calibration, faults, or accumulators) stored in nonvolatile memory."


The remanufactured ECM supplier tested ECM #2 and then programmed another remanufactured ECM. The original ECM was reinstalled, no change. ECM #3 installed, no change. 

If it’s a injector that would not be shutting off completely and allowing fuel to pass into the cylinder (stuck or dirty) , wouldn’t that cause that cylinder to smoke more? 
We’re hoping to get someone to diagnose again and with a computer shut down each injector individually and look for a noticeable change in black smoke and rough idle. 

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Has anyone encountered a sudden induction leak with their engines?